How many different stereoisomeric products are formed in the monobromination of (a) racemic l,2-dimethylcyclohexane and (b) pure (R,R)-1,2-dimethylcyclohexane? (c) For your answers to (a) and (b), indicate whether you expect equal or unequal amounts of the various products to be formed. Indicate to what extent products can be separated on the basis of having different physical properties (e.g., solubility, boiling point).